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SUMMITRY LLC

Position in BIIB — Biogen Inc.

CIK 1280043 Foster City, CA

Position in BIIB

as of Jun 30, 2026 · filed Jul 21, 2026
Position Value
$893,840
+$25,406 QoQ
Shares Held
4,137
-12.7% QoQ
Ownership
0.003%
of shares outstanding
% of Portfolio
0.03%
of 13F equity value
Holder Rank
#470
of 1,036 holders
Holding Since
Jun 2025
5 quarters on record
Voting authority Sole 0% Shared 0% None 100%

Common Shares in BIIB Over Time

Shares Held

Position Value (USD)

Position in Drug Manufacturers - General

Healthcare · as of Jun 30, 2026

SUMMITRY LLC holds $46,849,010 across 11 Drug Manufacturers - General names. BIIB ranks #5 (1.9% of the industry book) .

# Ticker Company Shares Value (USD) Open
5 BIIB
Biogen Inc.
This page
4,137 $893,840

All Filings in BIIB

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5 filing rows on record
Report Date Value (USD) Shares
2026-06-30 $893,840 4,137
2026-03-31 $868,434 4,737
2025-12-31 $843,696 4,794
2025-09-30 $846,503 6,043
2025-06-30 $332,939 2,651